A Polyurethane spraying machine is a professional construction device widely used for thermal insulation, waterproofing, and protective coating projects, delivering stable and efficient spraying for buildings, cold storage, pipelines, and various industrial surfaces.

What is a Polyurethane Spraying Machine
A polyurethane spraying machine is a specialized machine designed to mix and spray polyurethane foam or elastomer coatings onto various surfaces. The equipment is widely used for thermal insulation, waterproofing, and anti-corrosion applications. By precisely mixing two chemical elements using a high-pressure polyurethane spraying machine, the machine autonomously initiates a chemical reaction to form a seamless, highly adhesive coating, which is particularly suitable for residential buildings and industrial projects.
Parameters of Spraying Insulation Machine
| Model | YG-25 | YG-30 | YG-28 | YG-36 |
| Power | three-phase 380V 50Hz | three-phase380V 50Hz | three-phase 380V 50Hz | three-phase 380V 50Hz |
| Heating power | 9.5KW | 18KW | 15KW | 22KW |
| Driven mode | pneumatic | pneumatic | pneumatic | hydraulic |
| Air source | 0.5~0.8MPa≥ 0.9m3/minute | 0.5~0.8MPa≥ 1.2m3/minute | 0.5~1 MPa≥ 1m3/minute | 0.5~0.8MPa≥ 0.5m3/minute |
| Material output | 2-10kg/minute | 2-10kg/minute | 2-10kg/minute | 2-12kg/minute |
| Max pressure | 25Mpa | 30Mpa | 28Mpa | 36Mpa |
| AB ratio | 1:1 | 1:1 | 1:1 | 1:1 |
Whether you need a spraying insulation machine for residential buildings or a high-pressure polyurethane spraying machine for industrial projects, we have the right solution for you.

How Does It Work
The polyurethane spraying machine is a precise mechanical process designed to handle fast-reacting chemicals.
- Supply: The machine draws two separate components from their respective drums or tanks.
- Pressurization: Powerful pumps pressurize both materials simultaneously.
- Impingement Mixing: After passing through a high-pressure polyurethane spraying machine, the two high-pressure streams meet inside the spray gun.
- Atomization: As the mixed material exits the nozzle, it expands into a fine spray pattern, instantly coating the surface.
Advantages of YG Building Insulation Spraying Machines
- Easy to use: workers can learn to operate it in a short time.
- Speed and Efficiency: A machine can cover hundreds of square meters in a single day, drastically reducing labor costs and project timelines.
- Seamless Protection: The high-pressure polyurethane spray from the machine creates a continuous “skin” over the surface with no seams or joints, which are weak points in many other waterproofing methods.
- Versatility: These machines can handle various materials, including thick polyurethane, polyurea, and epoxy, adapting to different project needs.


Wide Applications of Building Insulation Spraying Machine
- Roofing and Waterproofing: Creating watertight seals on flat roofs, balconies, and terraces.
- Infrastructure: Protecting bridges, highways, and pipelines from rust and environmental damage.
- Industrial Flooring: Applying durable, chemical-resistant floors for factories, warehouses, and parking garages.
- Cold Storage: Spraying polyurethane foam for thermal insulation in refrigerated trucks and cold storage warehouses.
FAQ
Q: Can this machine work on different surfaces?
A: Yes, it works well on flat walls, curved pipes, tanks, and many irregular surfaces.
Q: Do you provide support after buying the machine?
A: Yes, we offer training, help with using the machine, and after-sales service to keep it running well.
Q: Is air freight possible?
A: It can be shipped by air, but because of its large size, a large aircraft is needed, and the shipping cost is very high.
Q: Does the machine include a storage tank?
A: Our machine does not come with a storage tank; it has a feeding pump that automatically lifts material from the hopper when inserted into it. Customers can purchase the hopper locally and simply place the feeding pump inside.


Client Case
A German construction contractor contacted us via Google inquiry, needing a building insulation spraying machine for cold storage and building insulation projects. After detailed communication, we recommended a high-pressure pneumatic model matching local voltage and construction requirements. The customer confirmed the order within 3 days; we completed production, inspection, and packaging quickly, and delivered the machine to Germany by sea as scheduled. After commissioning and training, the customer reported stable operation, uniform spraying, obvious efficiency improvement, and that it fully met German construction standards. They noted that material waste was reduced by nearly 20% compared to their previous equipment. They praised the equipment quality and service and planned additional purchases for new projects.
Why Choose YG
YG is a specialized manufacturer of polyurethane spraying machines with over 20 years of experience in research, development, and global sales. Our machines are built to meet CE and ISO standards, and we have delivered products to more than 40 countries across Europe, North America, Southeast Asia, and the Middle East. We offer more than just equipment. Our team provides detailed pre-sale consultations to help you select the right machine based on your project size, local power supply, and material requirements. For customers with unique job site conditions, we offer customized solutions including hose lengths, gun configurations, and heating system adjustments. After your purchase, our support continues. We provide remote commissioning, operator training videos, and a reliable supply of spare parts. With a responsive after-sales team and a commitment to quality, YG has become a trusted partner for contractors and industrial clients worldwide. Choose YG for equipment you can rely on and service you can count on.









